<template>
  <div>
    <div style="margin: 10px 0">
      <el-input style="width: 200px" placeholder="请输入名称" suffix-icon="el-icon-search" v-model="name"></el-input>
      <!--      <el-input style="width: 200px" placeholder="请输入邮箱" suffix-icon="el-icon-message" class="ml-5" v-model="email"></el-input>-->
      <!--      <el-input style="width: 200px" placeholder="请输入地址" suffix-icon="el-icon-position" class="ml-5" v-model="address"></el-input>-->
      <el-button class="ml-5" type="primary" @click="load">搜索</el-button>
      <el-button type="warning" @click="reset">重置</el-button>
    </div>

    <div style="margin: 10px 0">
<!--      <el-button type="primary" @click="handleAdd">新增 <i class="el-icon-circle-plus-outline"></i></el-button>-->
      <el-popconfirm
          class="ml-5"
          confirm-button-text='确定'
          cancel-button-text='我再想想'
          icon="el-icon-info"
          icon-color="red"
          title="您确定批量删除这些数据吗？"
          @confirm="delBatch"
      >
        <el-button type="danger" slot="reference">批量删除 <i class="el-icon-remove-outline"></i></el-button>
      </el-popconfirm>
      <!--      <el-upload action="http://localhost:9090/user/import" :show-file-list="false" accept="xlsx" :on-success="handleExcelImportSuccess" style="display: inline-block">-->
      <!--        <el-button type="primary" class="ml-5">导入 <i class="el-icon-bottom"></i></el-button>-->
      <!--      </el-upload>-->
      <!--      <el-button type="primary" @click="exp" class="ml-5">导出 <i class="el-icon-top"></i></el-button>-->
    </div>

    <el-table :data="tableData" border stripe :header-cell-class-name="'headerBg'"  @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55"></el-table-column>
<!--      <el-table-column prop="id" label="ID" width="80"></el-table-column>-->
      <el-table-column prop="goodsId" label="商品图片" width="80">
        <template v-slot="scope">
          <el-image style="width: 100px;" :src="scope.row.goodsImg" :preview-src-list="[scope.row.goodsImg]"></el-image>
        </template>
      </el-table-column>
      <el-table-column prop="goodsName" label="商品名称" width="80"></el-table-column>
      <el-table-column prop="num" label="商品价格">
        <template v-slot="scope">
           <span style="color: orangered;text-align:right">￥ {{scope.row.price}}</span>
        </template>
      </el-table-column>
      <el-table-column prop="num" label="商品数量">
        <template v-slot="scope">
          <el-input-number v-model="scope.row.num" :min="1" :max="100" label="数量" @change="changeNum(scope.row)"></el-input-number>
        </template>
      </el-table-column>
      <el-table-column prop="time" label="添加时间"></el-table-column>
      <el-table-column label="操作"  width="280" align="center">
        <template slot-scope="scope">
          <el-button type="success" @click="handleEdit(scope.row)">编辑 <i class="el-icon-edit"></i></el-button>
          <el-popconfirm
              class="ml-5"
              confirm-button-text='确定'
              cancel-button-text='我再想想'
              icon="el-icon-info"
              icon-color="red"
              title="您确定删除吗？"
              @confirm="del(scope.row.id)"
          >
            <el-button type="danger" slot="reference">删除 <i class="el-icon-remove-outline"></i></el-button>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>
    <div style="padding: 10px 0">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </div>

    <div style="margin:10px 0; text-align: right">
      <div style="padding: 10px 0;" >当前已选择商品总价：<span style="color: orangered" >￥ {{totalPrice}}</span></div>
      <el-button style="color: white; background-color: orangered" size="medium" @click="settleAccount"><i class="el-icon-coin"></i>结算</el-button>
    </div>

    <el-dialog title="商品信息" :visible.sync="dialogFormVisible" width="30%" >
      <el-form label-width="80px" size="small">
        <el-form-item label="商品id">
          <el-input v-model="form.goodsId" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="用户id">
          <el-input v-model="form.userId" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="商品数量">
          <el-input v-model="form.num" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="上架时间">
          <el-date-picker
              v-model="form.time"
              type="datetime"
              value-format="yyyy-MM-dd"
              placeholder="选择日期时间">
          </el-date-picker>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>

  </div>
</template>

<script>
import {serverIp} from "../../../public/config";

export default {
  name: "Cart",
  data() {
    return {
      totalPrice:0,
      form:{},
      serverIp: serverIp,
      tableData: [],
      total: 0,
      pageNum: 1,
      pageSize: 10,
      name: "",
      dialogFormVisible: false,
      menuDialogVis: false,
      multipleSelection: [],
      menuData: [],
      props: {
        label: 'name',
      },
      expends: [],
      checks: [],
      roleId: 0,
      roleFlag: '',
      ids: []
    }
  },
  created() {
    this.load()
  },
  methods: {
    settleAccount(){
      if (!this.multipleSelection||!this.multipleSelection.length){
        this.$message.error("请选择要结算的商品")
        return
      }
      let data={name:this.multipleSelection[0].goodsName,totalPrice:this.totalPrice,carts:this.multipleSelection}
      console.log(data)
      this.request.post('/orders',data).then(res=>{
        if (res.code === '200') {
          this.$message.success("结算成功")
          this.load()
        } else {
          this.$message.error(res.msg)
        }
      })
    },
    handleAvatarSuccess(res) {
      this.form.img = res
    },
    changeNum(row){
      // console.log(row)
      this.request.post("/cart/num/"+row.id+"/"+row.num).then(res => {
      this.totalPrice=0
        //计算价格
        this.multipleSelection.forEach(  item =>{
          item.num=row.num//更新选中的数组数量
          this.totalPrice +=item.price* row.num
        })
        this.totalPrice=this.totalPrice.toFixed(2)
      })
    },
    load() {
      this.request.get("/cart/page", {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          name: this.name,
        }
      }).then(res => {
        this.tableData = res.data.records
        this.total = res.data.total
      })
    },
    save() {
      this.request.post("/cart", this.form).then(res => {
        if (res.code === '200') {
          this.$message.success("保存成功")
          this.dialogFormVisible = false
          this.load()
        } else {
          this.$message.error("保存失败")
        }
      })
    },
    saveRoleMenu() {
      this.request.post("/cart/roleMenu/" + this.roleId, this.$refs.tree.getCheckedKeys()).then(res => {
        if (res.code === '200') {
          this.$message.success("绑定成功")
          this.menuDialogVis = false

          // 操作管理员角色后需要重新登录
          if (this.roleFlag === 'ROLE_ADMIN') {
            this.$store.commit("logout")
          }

        } else {
          this.$message.error(res.msg)
        }
      })
    },
    handleAdd() {
      this.dialogFormVisible = true
      this.form = {}
    },
    handleEdit(row) {
      this.form = JSON.parse(JSON.stringify(row))
      this.dialogFormVisible = true
    },
    del(id) {
      this.request.delete("/cart/" + id).then(res => {
        if (res.code === '200') {
          this.$message.success("删除成功")
          this.load()
        } else {
          this.$message.error("删除失败")
        }
      })
    },
    handleSelectionChange(val) {
      // console.log(val)
      this.multipleSelection=0
      this.multipleSelection = val
      //进行计算金额
      if (val && val.length){
        val.forEach(item =>{
          this.totalPrice+=item.num *item.price
        })
        this.totalPrice=this.totalPrice.toFixed(2)
      }

    },
    delBatch() {
      let ids = this.multipleSelection.map(v => v.id)  // [{}, {}, {}] => [1,2,3]
      this.request.post("/cart/del/batch", ids).then(res => {
        if (res.code === '200') {
          this.$message.success("批量删除成功")
          this.load()
        } else {
          this.$message.error("批量删除失败")
        }
      })
    },
    reset() {
      this.name = ""
      this.load()
    },
    handleSizeChange(pageSize) {
      console.log(pageSize)
      this.pageSize = pageSize
      this.load()
    },
    handleCurrentChange(pageNum) {
      console.log(pageNum)
      this.pageNum = pageNum
      this.load()
    },
    async selectMenu(role) {
      this.roleId = role.id
      this.roleFlag = role.flag
      this.request.get("/cart/roleMenu/" + this.roleId).then(res => {
        this.checks = res.data
        this.ids.forEach(id => {
          if (!this.checks.includes(id)) {
            // 可能会报错：Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'setChecked')
            this.$nextTick(() => {
              this.$refs.tree.setChecked(id, false)
            })
          }
        })
        this.menuDialogVis = true
      })
    },
  }
}
</script>


<style>
.headerBg {
  background: #eee!important;
}
</style>
